HelloCassandra.java: Main Method

gistfile1.java

  public static void main(String[] args) {
    Cluster cluster = null;
    Session session = null;

    try {
      cluster = Cluster.builder().addContactPoints("localhost").build();
      Metadata metadata = cluster.getMetadata();
      System.out.printf("Connected to cluster: %s\n", metadata.getClusterName());
      for ( Host host : metadata.getAllHosts() ) {
        System.out.printf("Datacenter: %s; Host: %s; Rack: %s\n", host.getDatacenter(), host.getAddress(), host.getRack());
      }

    } catch (NoHostAvailableException nhae) {
      System.err.println("No alive hosts to use:" + nhae.getMessage());
      System.exit(1);
    } catch (Exception e) {
      System.err.println("Unexpected error: " + e.getMessage());
      e.printStackTrace();
      System.exit(1);
    } finally {
      //session.close();
      cluster.close();
    }
  }